Functionalization of Mesoporous Silicon Nanoparticles for Targeting and Bioimaging Purposes

Figure 3

The effect of plasma immersion to the hydrodynamic size of the UnTHCPSi-NPs with two different PEGylation approaches. PEG was either adsorbed to the NP surface via hydrophobic interactions (O-PEG) or covalently bound to the carboxylic groups (C-PEG). Plain UnTHCPSi nanoparticles were used as a control. The results are presented as an average of three measurements ± standard deviation. The PDI values < 0.10 (*<0.13).